package com.zj.config;

//import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.loadbalancer.core.RandomLoadBalancer;
import org.springframework.cloud.loadbalancer.core.ReactorLoadBalancer;
import org.springframework.cloud.loadbalancer.core.ServiceInstanceListSupplier;
import org.springframework.cloud.loadbalancer.support.LoadBalancerClientFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.web.client.RestTemplate;

/**
 * RestTemplate的配置类，用于托管RestTemplate对象
 * */
@Configuration
public class RestTemplateConfig {
    @Bean
    @LoadBalanced   //对这个RestTemplate 发出的请求开启负载均衡
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }

    //创建 RandomLoadBalancer  负载均衡器
//    @Bean
//    public ReactorLoadBalancer<ServiceInstance> rlb(Environment environment,
//                                 LoadBalancerClientFactory loadBalancerClientFactory){
//        String name = environment.getProperty(LoadBalancerClientFactory.PROPERTY_NAME);
//        return new RandomLoadBalancer(loadBalancerClientFactory.getLazyProvider(name, ServiceInstanceListSupplier.class),name);
//    }
}
